Ras inhibitor LUNA18

An orally bioavailable cyclic peptide and Ras inhibitor, with potential antineoplastic activity. Upon oral administration, Ras inhibitor LUNA18 selectively targets, binds to and inhibits Ras, thereby inhibiting Ras-dependent signaling and inhibits proliferation of tumor cells in which Ras is overexpressed and/or mutated. Ras serves an important role in cell signaling, division and differentiation. Mutations of Ras may induce constitutive signal transduction leading to tumor cell growth, proliferation, invasion, and metastasis.